Rare magnetic resonance imaging findings of intracranial solitary fibrous tumor: A case report

Solitary fibrous tumor (SFT) is a rare mesenchymal spindle cell tumor. SFT in the central nervous system (CNS) is rare. This case reports rare magnetic resonance imaging (MRI) findings of intracranial SFT (ISFT). PATIENT CONCERNS: We report a 47-year-old female patient who was found to have weakness in her right limb with walking instability 2 months before the visit. DIAGNOSES: Based on imaging, the provisional diagnosis was meningioma. Postsurgical histopathological diagnosis confirmed World Health Organization (WHO) grade I SFT/hemangiopericytoma (HPC). INTERVENTIONS: The lesion was totally excised. The patient improved remarkably after the operation, without any signs of associated limb movement disorder. OUTCOMES: No local recurrence or metastases were observed in the follow-up 3 months after the surgery. LESSONS: Intracranial SFT is a rare mesenchymal tumor. Due to different tumor components, imaging manifestations are diverse and lack of characteristics, so preoperative diagnosis is challenging. Our case provides a rare ISFT with significantly decreased signal intensity in T2 weighted images (T2WI), which is an important supplement to the rare imaging findings of intracranial SFT.